Status of Cardiac Magnetic Resonance in Clinical Application and Scientific Research: A National Survey in China.

Abstract

Background: Cardiovascular magnetic resonance (CMR) is rapidly expanding in China, yet comprehensive national data on its clinical application and research status are limited. This study aims to evaluate the current landscape of CMR across the country.

Methods: An electronic survey was conducted targeting two groups: physicians trained at the Fuwai Fellowship Program and members of the Chinese Society of Radiology. The survey encompassed details on CMR equipment, clinical practices, and research activities.

Results: Of 248 hospitals responded to the survey, 98.0% were tertiary centers. The number of scanners distributed unevenly across geographic regions, with Central South China leading with 5.89/center. Siemens, Philips and GE were top three scanner vendors. Most centers initiated CMR program post-2015. Coronary artery disease was the primary indication for CMR. The median annual volume was 120/center. High-volume centers unevenly concentrated most CMR cases. The weighted average waiting period was 14.2 days, while scan durations ranged from 40 to 60minutes. Two thirds of hospitals used post-processing software to analyze imaging. Half of responding centers included T1 and T2 mapping in clinical routine, but stress perfusion was underutilized in both clinic and research. Approximately one-third of centers had published CMR-related research. The majority of physicians were confident about the development of CMR. Major barriers to CMR development included long scan times, high costs, insufficient equipment, and limited training.

Conclusions: CMR is experiencing rapid growth in China but faces significant regional disparities in access to technology and expertise. Efforts to reduce costs, improve training, and expand access to advanced techniques are crucial for balanced development.